Tips to open SLT file

Can't open the SLT file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open SLT files as well as a list of programs that support SLT files.

SLT file extension

File Name Mozilla User Profile Folder
File Developer Mozilla
File Category Settings Files

The SLT file is supported on 2 operating systems. Depending on your operating system, you may need different software to handle the SLT files. Below is a summary of the number of programs that support and open the SLT file on each system platform.

Operating systems
  • 2
  • 2
  • 0
  • 0
  • 0
  • 0

What is SLT file?

The file with the extension SLT is the Settings Files file type. The creator of this file is Mozilla. Additionally, the Settings Files category contains 1305 of other files. Mozilla User Profile Folder is most often found on 2 operating systems. Although it can be found with greater or lesser success on any operating system, it will only be useful on Mac OS, Windows. The main program that supports this format is Mozilla Firefox. This was created by Mozilla. This file type can also be opened by 3 other programs. Mozilla Thunderbird will apply when it is not possible to use Mozilla Firefox.

How to open SLT file?

An often recurring problem with Mozilla User Profile Folder is that SLT is not associated with the correct program file. This is manifested by the fact that SLT files open in unusual applications or do not have an assigned program. This can be quickly resolved by following the instructions below.

The first thing you should do is just "doubleclick" on the SLT file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install Mozilla Firefox

An often overlooked issue is to make sure that Mozilla Firefox is installed on the computer. The easiest method is to use the system search engine by entering the program name Mozilla Firefox in it. If we do not have this program, it is worth installing it, as it will help you automatically associate the file SLT with Mozilla Firefox. Below you will find a list of applications that support SLT files.

Step 2. Create association of Mozilla Firefox with SLT files

If, despite the installed application, the SLT file does not start in the Mozilla Firefox application, you must create a file association. The association can be created using the drop-down list available by right-clicking on the file and selecting Properties. Information about the file and the program that the file is associated with are available here. Using the "Change" button we can set the program to handle this type. It may happen that in the next window there will be no appropriate program - however, this can be corrected with the "Browse" option where you should manually indicate the program location. Checking the "Always use the selected program ..." box will permanently associate the SLT file with the Mozilla Firefox program.

Step 3. Update Mozilla Firefox to the latest version

If, however, after binding Mozilla Firefox with Mozilla User Profile Folder there were still problems, you should update the program to the latest version. In this case, use the Mozilla website or update the program from the application.

Step 4. Check for the following problems with the SLT file

The problem may also be with the file itself if the above steps don't work. File problems can be divided into the following:

The SLT file may be unusually small compared to the original file. Usually this applies to SLT files downloaded from the Internet in case the download did not finish properly. The only repair option is to download the file again.
The most common cause here is computer viruses. Perform a virus scan using available and up-to-date anti-virus software. Some antivirus vendors also provide free online scanners. However, it is important to scan the entire system, not only the file SLT or the program directory. However, remember that not every infected SLT file can be recovered, so it is important to take care of regular backups.
A typical compatibility error - the program does not support the older version of the SLT file. Help should be sought from the software developer, as they usually recommend using free file converters or installing an older version of the program.
The file may be corrupted in a number of ways. The repair method must be adapted to the type of file and damage. Some programs offer the option of recovering data from damaged SLT files. The easiest way to restore the file is from a backup or by contacting Mozilla, but this one can be expensive. Not all damage can be reversed.
When reading, a message appears that the file was encrypted or corrupted. The encrypted SLT files cannot be played on other computers than the one on which they were encrypted, they must be decrypted before using on another device.
The operating system protects files in some locations (e.g. the root of the system partition) against unauthorized access. These directories are write-protected to them and it's very hard to fix this problem. If possible, you can try to move the SLT file to another location.
This can happen on a file that does not support multiple access. In this case, the SLT file is blocked by the first application to open it. Just close unnecessary programs. Sometimes you have to wait for the session to the file SLT to close. Antivirus programs or a backup being made may lock the file for a while without the user's knowledge. If this does not work either, restart the device.